Hi,
We're using oVirt 4.4.8.6. We make an intensive use of the VM portal
because we've hundreds of students creating their own VMs. Recently, one
of the professors reported that they are encountering an error when
adding a disk to a newly created VM.
They are creating ISO based VMs (CentOS-8-Stream in this case),
everything goes smoothly but when adding a thin-provisioned disk, this
error shows up:
2022-02-17 09:56:28,073Z INFO
[org.ovirt.engine.core.bll.storage.disk.AddDiskCommand] (default
task-39078) [0332e7b6-80b1-48e9-b849-80698f2ce7ab] Lock Acquired to
object
'EngineLock:{exclusiveLocks='[e4a02ab9-31e4-4e8c-8999-91700263ff08=VM_DISK_BOOT]',
sharedLocks='[e4a02ab9-31e4-4e8c-8999-91700263ff08=VM]'}'
2022-02-17 09:56:28,446Z WARN
[org.ovirt.engine.core.bll.storage.disk.AddDiskCommand] (default
task-39078) [0332e7b6-80b1-48e9-b849-80698f2ce7ab] Validation of action
'AddDisk' failed for user aluX@domain-authz. Reasons:
VAR__ACTION__ADD,VAR__TYPE__DISK,ACTION_TYPE_FAILED_DISK_CONFIGURATION_NOT_SUPPORTED,$volumeFormat
RAW,$volumeType Sparse,$backup None
2022-02-17 09:56:28,446Z INFO
[org.ovirt.engine.core.bll.storage.disk.AddDiskCommand] (default
task-39078) [0332e7b6-80b1-48e9-b849-80698f2ce7ab] Lock freed to object
'EngineLock:{exclusiveLocks='[e4a02ab9-31e4-4e8c-8999-91700263ff08=VM_DISK_BOOT]',
sharedLocks='[e4a02ab9-31e4-4e8c-8999-91700263ff08=VM]'}'
2022-02-17 09:56:28,504Z ERROR
[org.ovirt.engine.api.restapi.resource.AbstractBackendResource] (default
task-39078) [] Operation Failed: [Cannot add Virtual Disk. Disk
configuration (RAW Sparse backup-None) is incompatible with the storage
domain type.]
However, changing the provisioning to thick does work and the disk can
be added.
I found [1] which talks about this but I'm not sure if it's the same
issue, nor it has a solution yet.
Is this a known bug? Does it have any workaround beyond creating
thick-provisioned disks?
Thanks.
Nicolás
[1]: https://access.redhat.com/solutions/6022811
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